Trio offers a range of dewatering screens that can work along or in series with screws to provide additional dewatering when lower moisture content is desired. The company also offers fine material washers and log washers.

McLanahan

McLanahan manufactures dewatering screens and screws that can be used in combination to supplement existing screw installations, depending on design criteria and particle size. A double-wash process can be performed by using the screw for de-silting and adding sprays on the screens.

GreyStone

GreyStone, Inc. says its Aggre-Dry Washer combines a fine material screw and dewatering screen to reduce moisture content in material to as low as 8 to 13 percent, while using only 30 horsepower to wash and dewater up to 100 tons per hour. The unit’s 0.25-mm screen opening allows material to build to a depth of 14 inches on the screen to squeeze out additional moisture.

From single to double and from fine to coarse, screws offer options that meet plant needs.

KPI-JCI

KPI-JCI’s fine material washers are engineered with high-efficiency drives, resulting in low-horsepower requirement and reduced operating costs, while increasing throughput.

KPI-JCI

KPI-JCI says its 500-ton-per-hour, coarse material washers are engineered to adapt to changing needs. Both single and twin-spiral designs can be reconfigured with numerous bolt-on paddle and flight arrangements to meet specifications.

Eagle Iron Works

Both single and double screws are available from Eagle Iron Works. Single-screw sizes range from 20 inches by 22 feet to 72 inches by 38 feet; double-screw washers range from 36 inches by 25 feet to 72 inches by 38 feet.